Patch: quick fix for pytest-flakes pytest 3.7.0 error.
Patch: quick fix for pytest-flakes pytest 3.7.0 error.

It appears that FlakesItems are not correct when updating to pytest
3.7.0 - this quick fix allows the conftest to ignore FlakesItems and
the global tests can be run, however running individual tests is still
broken.

A bug report has been submitted to pytest-flakes:

https://github.com/fschulze/pytest-flakes/issues/21

DistrictDataLabs/yellowbrick,pdamodaran/yellowbrick